QT下写的界面程序，可以实现串口和UDP的字符串和16进制收发

#include "sendandreceivewidge.h" SendandReceiveWidge::SendandReceiveWidge(QWidget *parent) : QDialog(parent) { isreceivestr = 1; issendstr = 1; applyforspace(); controlnamed(); controltranslate(); controllayout(); connect(pushButtonsend,SIGNAL(clicked(bool)),this,SLOT(on_pushButtonsend_clicked())); connect(pushButtonsendclear,SIGNAL(clicked(bool)),this,SLOT(on_pushButtonsendclear_clicked())); connect(pushButtonclearreceive,SIGNAL(clicked(bool)),this,SLOT(on_pushButtonclearreceive_clicked())); connect(pushButtonsave,SIGNAL(clicked(bool)),this,SLOT(on_pushButtonsave_clicked())); connect(radioButtonreceivestr,SIGNAL(clicked(bool)),this,SLOT(setreceiveformstr())); connect(radioButtonreceivehex,SIGNAL(clicked(bool)),this,SLOT(setreceiveformhex())); connect(radioButtonsendstr,SIGNAL(clicked(bool)),this,SLOT(setsendformstr())); connect(radioButtonsendhex,SIGNAL(clicked(bool)),this,SLOT(setsendformhex())); //serialport connect(serialport,SIGNAL(readyRead()),this,SLOT(on_serialdataready())); //udp connect(udp.udp_socket_rx, SIGNAL(readyRead()),this, SLOT(on_udpdataready())); } SendandReceiveWidge::~SendandReceiveWidge() { } void SendandReceiveWidge::setreceiveformstr() { isreceivestr = 1; } void SendandReceiveWidge::setreceiveformhex() { isreceivestr = 0; } void SendandReceiveWidge::setsendformstr() { issendstr = 1; } void SendandReceiveWidge::setsendformhex() { issendstr = 0; } void SendandReceiveWidge::applyforspace() { groupBoxsend = new QGroupBox(); textEditsend = new QTextEdit(); labelsend = new QLabel(); pushButtonsendclear = new QPushButton(); radioButtonsendstr = new QRadioButton(); radioButtonsendhex = new QRadioButton(); pushButtonsend = new QPushButton(); groupBoxreceive = new QGroupBox(); textEditreceive = new QTextEdit(); labelreceive = new QLabel(); pushButtonclearreceive = new QPushButton(); radioButtonreceivestr = new QRadioButton(); radioButtonreceivehex = new QRadioButton(); pushButtonsave = new QPushButton(); } void SendandReceiveWidge::controlnamed() { groupBoxsend->setObjectName(QStringLiteral("groupBoxsend")); textEditsend->setObjectName(QStringLiteral("textEditsend")); labelsend->setObjectName(QStringLiteral("labelsend")); pushButtonsendclear->setObjectName(QStringLiteral("pushButtonsendclear")); radioButtonsendstr->setObjectName(QStringLiteral("radioButtonsendstr")); radioButtonsendhex->setObjectName(QStringLiteral("radioButtonsendhex")); pushButtonsend->setObjectName(QStringLiteral("pushButtonsend")); groupBoxreceive->setObjectName(QStringLiteral("groupBoxreceive")); textEditreceive->setObjectName(QStringLiteral("textEditreceive")); labelreceive->setObjectName(QStringLiteral("labelreceive")); pushButtonclearreceive->setObjectName(QStringLiteral("pushButtonclearreceive")); radioButtonreceivestr->setObjectName(QStringLiteral("radioButtonreceivestr")); radioButtonreceivehex->setObjectName(QStringLiteral("radioButtonreceivehex")); pushButtonsave->setObjectName(QStringLiteral("pushButtonsave")); } void SendandReceiveWidge::controltranslate() { //设置文字 groupBoxreceive->setTitle(tr("receive area")); labelreceive->setText(tr("total receive")); pushButtonclearreceive->setText(tr("clear")); radioButtonreceivestr->setText(tr("sting")); radioButtonreceivehex->setText(tr("hex")); pushButtonsave->setText(tr("save")); groupBoxsend->setTitle(tr("send area")); labelsend->setText(tr("total send")); pushButtonsendclear->setText(tr("clear")); radioButtonsendstr->setText(tr("sting")); radioButtonsendhex->setText(tr("hex")); pushButtonsend->setText(tr("send")); } void SendandReceiveWidge::controllayout() { QVBoxLayout *v_send_layout = new QVBoxLayout(); v_send_layout->addWidget(labelsend); v_send_layout->addStretch(); v_send_layout->addWidget(radioButtonsendstr); v_send_layout->addWidget(radioButtonsendhex); v_send_layout->addWidget(pushButtonsendclear); v_send_layout->addWidget(pushButtonsend); QHBoxLayout *h_send_layout = new QHBoxLayout(); h_send_layout->addWidget(textEditsend); h_send_layout->addLayout(v_send_layout); groupBoxsend->setLayout(h_send_layout); QVBoxLayout *v_receive_layout = new QVBoxLayout(); v_receive_layout->addWidget(labelreceive); v_receive_layout->addStretch(); v_receive_layout->addWidget(radioButtonreceivestr); v_receive_layout->addWidget(radioButtonreceivehex); v_receive_layout->addWidget(pushButtonclearreceive); v_receive_layout->addWidget(pushButtonsave); QHBoxLayout *h_receive_layout = new QHBoxLayout(); h_receive_layout->addWidget(textEditreceive); h_receive_layout->addLayout(v_receive_layout); groupBoxreceive->setLayout(h_receive_layout); QVBoxLayout *main_layout = new QVBoxLayout(); main_layout->addWidget(groupBoxreceive); main_layout->addWidget(groupBoxsend); this->setLayout(main_layout); radioButtonsendstr->setChecked(true); radioButtonreceivestr->setChecked(true); } void SendandReceiveWidge::on_pushButtonclearreceive_clicked() { textEditreceive->clear(); } void SendandReceiveWidge::on_pushButtonsendclear_clicked() { textEditsend->clear(); } void SendandReceiveWidge::on_pushButtonsend_clicked() { if(tool == SERIAL) { if(issendstr) //以字符串方式发送 { QString str = textEditsend->toPlainText(); QByteArray ba = str.toLatin1(); serialport->write(ba); } else { QString str = textEditsend->toPlainText();//从LineEdit得到字符串 QByteArray ba; StringToHex(str,ba);//将str字符串转换为16进制的形式 serialport->write(ba);//发送到串口 } } if(tool == UDP) { if(issendstr) //以字符串方式发送 { QString str = textEditsend->toPlainText(); QByteArray ba = str.toLatin1(); udp.udp_socket_tx->writeDatagram(ba, ba.size(), udp.IP_remote, udp.Port_Tx); } else { QString str = textEditsend->toPlainText();//从LineEdit得到字符串 QByteArray ba; StringToHex(str,ba);//将str字符串转换为16进制的形式 udp.udp_socket_tx->writeDatagram(ba, ba.size(), udp.IP_remote, udp.Port_Tx); } } if(tool == TCP) { //会崩溃 // if(issendstr) // { // QString str = textEditsend->toPlainText(); // QByteArray ba = str.toLatin1(); // //tcp.tcp_socket->write(ba); // tcp.tcp_socket->write("gaoweijin"); // } // else // { // QString str = textEditsend->toPlainText();//从LineEdit得到字符串 // QByteArray ba; // StringToHex(str,ba);//将str字符串转换为16进制的形式 // tcp.tcp_socket->write(ba); // } } } void SendandReceiveWidge::on_pushButtonsave_clicked() { //写入到文件 QFile data("D:\\file.txt"); if (data.open(QFile::WriteOnly | QIODevice::Truncate)) { QTextStream out(&data); out << textEditreceive->toPlainText(); } } void SendandReceiveWidge::on_serialdataready() { if(mode == SENDANDRECEIVE) { if(isreceivestr) { QByteArray requestData; requestData = serialport->readAll(); //读取数据 串口读取出来的数据类型 是QByteArray 不是QString textEditreceive->insertPlainText(requestData); textEditreceive->moveCursor(QTextCursor::End); } else { QByteArray requestData = serialport->readAll();